Una Vincenzo, Lady Troubridge (born Margot Elena Gertrude Taylor; 8 March 1887 – 24 September 1963) was a British sculptor and translator.

[3] She was raised in Montpelier Square, in London's Knightsbridge district, and became a pupil at the Royal College of Art, and after she graduated set up a sculpture studio.

[8] Both Troubridge and Hall identified as "inverts",[7] a term used by sexologists such as Krafft-Ebing and Havelock Ellis usually to connote what is regarded as homosexuality.

[9] In the last nine years of her life, Hall had become obsessed with a White Russian nurse, Evgenia Souline, a relationship which caused Troubridge unhappiness, but which she nonetheless tolerated.

Initially, the women had decided to move to Italy and live in Florence but were forced to return at the outbreak of the Second World War.

In the early 1920s, Troubridge adopted a tailored style similar to Hall's own masculine look as a way of making her sexual identity and their partnership visible.

[13] She is buried in the Campo Verano Cemetery in Rome, and on her coffin is inscribed "Una Vincenzo Troubridge, the friend of Radclyffe Hall".